Chris,
The lack of ANEXT specifications is still a big concern to me. As we saw,
the dominant residual noise at the receiver will be ANEXT. Therefore its
strength will directly determine the system performance.
I saw there was a presentation about the ANEXT model for cat5/5e/6 on
November's meeting
<http://www.ieee802.org/3/tutorial/nov02/tutorial_2_1102.pdf>. Is this a
ANEXT model that is gonna be standardized or not?
Regards,
Xiaopeng
"Chris DiMinico" <cd@mohawk-cdt.com>@majordomo.ieee.org on 01/17/2003
09:00:08 AM
Sent by: owner-stds-802-3-10gbt@majordomo.ieee.org
To: "Chris DiMinico" <cd@mohawk-cdt.com>, "William Jones"
<wjones@solarflare.com>, <stds-802-3-10gbt@ieee.org>
cc:
Subject: Re: [10GBASE-T] matlab ad hoc
Bill,
Please find the ISO 11801 channel specifications attached for:
1. Return Loss
2. Insertion Loss
3. Pair-to-Pair NEXT
4. Power Sum NEXT
5. Pair-to-Pair ELFEXT
5. Power Sum ELFEXT
Regards,
Chris
----- Original Message -----
From: "Chris DiMinico" <cd@mohawk-cdt.com>
To: "William Jones" <wjones@solarflare.com>; <stds-802-3-10gbt@ieee.org>
Sent: Thursday, January 16, 2003 1:17 PM
Subject: Re: [10GBASE-T] matlab ad hoc
> Bill,
>
> I'll provide the cabling standard channel specifications before close of
> business.
>
> Regards,
>
> Chris
>
>
> ----- Original Message -----
> From: "William Jones" <wjones@solarflare.com>
> To: <stds-802-3-10gbt@ieee.org>
> Sent: Thursday, January 16, 2003 1:07 PM
> Subject: [10GBASE-T] matlab ad hoc
>
>
>
> Participants
>
> To get this kicked off, I suggest developing some code to compute the
> optimal DFE SNR. I would like to see several participants independently
> develop some code. For the purposes of testing the code only, we need to
> agree upon a transmit PSD, transformer, channel and noise models. I do
not
> want to use DSL models. I suggest something from TIA 568b or ISO 11801.
I
> am open to specific proposals. For the transformer, I suggest a simple
> first order high pass filter with low frequency 3dB point in the range of
10
> to 15 MHz. For the simulation results I have present, I used 12.5 MHz.
For
> initial testing purposes, I suggest a PAM10 PSD with 10dBm power.
>
> I am sending this to the reflector. But, since several people are having
> problems getting to the reflector, I am thinking to carry on the ad hoc
via
> direct distribution to interested participants. Let me know if this
creates
> a problem for anyone. So, I will be sending a separate email directly to
> those participants that have contacted me either by email or business
card
> by the end of business today (1/16/03). If you do not receive a second
> email and are interested in participating, kindly send me an email.
>
> Also, I have just received the 1000BASE-T code from Chris which I will be
> distributing.
>
> Regards
>
> Bill
>
> William W. Jones, Ph.D.
> Director of Systems Engineering
> SolarFlare Communications, Inc.
> 949-581-6830, ext. 2550
> mobile: 619-405-2445
> fax: 949-581-4695
> wjones@solarflare.com
>
>
>
(See attached file: ISO 11801 Channel-Class D and Class E.xls)